Incandescent vapor-burner.



No. 643,635. Patented Feb. 20, I900.

F. B. DUFFEY.

INCANDESGENT VAPOR BURNER.

(Application filed Aug. 24, 1899.)

(No Model.)

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NITED STATES FRANK B. DUFFEY, OF LOS ANGELES, CALIFORNIA.

INCANDESCENT VAPOR-BURNER.

SPECIFICATION forming part of Letters Patent No. 643,635, dated February 20, 1900. Application filed August 24, 1899. Serial No. 728,331. (No model.)

To aZZ whom, it may concern;

Be it known that I, FRANK B. DUFFEY, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Gas Burner, of which the following is a specification.

This invention relates to gas and vapor burners, the object in view being to provide an economical and reliable burner of the type referred to especially designed for use in connection with the ordinary mantle.

The chief object of the present invention is to provide, in connection with a vaporburner, means whereby a more thorough generation of gas is accomplished, the construction enabling the ignited gas to be directed against the generator, whereby the latter is maintained in a more highly heated condition than is usual with burners of this class. By facilitating the generation of the gas from the oil and increasing the rapidity with which the gas is generated the liability of the burner becoming flooded with oil is reduced to a minimum and the power of the light increased.

The detailed object and advantages of the invention will more fully appear in the course of the subjoined description.

The invention consists in a gas or vapor burner embodying certain novel features and details of construction and arrangement of parts, as hereinafter fully described and illustrated in the drawings and incorporated in the claims.

In the accompanying drawings, Figure 1 is a perspective view of a burner constructed in accordance with the present invention with a portion of the shell or drum broken away to show the interior arrangement. Fig. 2 is a central vertical longitudinal section through the same. Fig. 3 is a cross horizontal section through the generator. Fig. at is a plan view of the burner without the mantle. Fig. 5 is a perspective view of the upper portion of the burner with the deflecting-hood removed. Fig. 6 is a detail perspective view of the hood. Fig. 7 isa reverse perspective View of the hood. Fig. 8 is a sectional view showing a modification of the hood.

Similar numerals of reference designate corresponding parts in all figures of the drawings.

Referring to the drawings, the burner contemplated in this invention comprises a body portion 1 in the form of a drum of hollow cylindrical shape, in the upper portion of which is arranged a generator 2, comprising two tubular members arranged at right angles to each other and having the crown-plate 3 snperimposed thereon. These members of the generator form the chambers 4, which communicate with each other at the angle 5, formed at their junction, the lower surfaces of said chambers and of the generator being exposed to the action of the torch applied beneath the burner for starting the generation of gas in the generating-chamber. The communicating chambers of the generator are located at one side of the diametrical center of the body of the burner, and the extremities of said straight chambers communicate, respectively, with an oil-supply tube 6 and a gas-conveying tube 7. The burner also comprises a centrally-arranged mixing-tube 8, which depends centrally within the drum 1 and overlies the discharge-opening 9 at the upper end of a needle-valve chamber 10, arranged beneath the mixing-tube and in communication with the gas conveying tube. Within said valve-chamber is arranged the ordinary needle-valve, the stem 11 of which is provided at its lower end with an operating wheel or handle 12. The construction and relative arrangement of the supply-tube, gasconveying tube, needle-valve, and mixingtube are the same as in other burners of this type, and therefore need no further description.

Extending upward from the crown-plate 3 is a collar 13, inwhich are arranged the screens through which the gas passes just prior to being ignited.

In carrying out the present invention the collar 13 is provided at preferably diametricallyopposite points with vertical slits 14, through which the gas may escape for a purpose which will hereinafter appear. Extending through the collar 13 at the junction of said collar with the crown-plate and in line with the upper surface of the crown-plate are gas ports or openings 15. Encircling the collar 13 is a deflecting-hood 16, comprising an annular or ring portion 17, fitting snugly around the collar, and radially-projecting flanges or hoods ICO , plate 3.

proper, 18, which extend outward to a point near the outer peripheral edge of the crown- The flanges 18 are arranged slightly above the crown-plate 3 and curve downward toward their outer edges, being substantially concavo convex in vertical cross -section, thereby forming a deflecting medium for the gas as it passes outward through the openings or ports 15. The annular portion or ring 17 is provided with notches 19, which register with the gas-ports l5 and allow the gas to pass outward from the collar 13 to the space under the flanges 18. The flanges of the hood are also provided with radial slits 20, which permit the upward escape of the ignited gas, and each of the flanges is provided at one end with a circumferentially-disposed notch 21, which lies close to one of the slits 14, so that the ignited gas passing outward through said slits may readily ignite the gas escaping beneath the flanges of the hood.

From the foregoing description it will be understood that a portion of the gas within the collar 13 will escape through the slits 14 and gas-ports 15, and as the slits 14 extend upward to a point in close proximity to the flame the flame passes downward through the slits and ignites the gas passing therethrough, which results in igniting the gas passing out beneath the flanges of the hood. By reason of the special formation of the flanges of the hood the ignited gas is deflected downward, so as to impinge against the crown-plate, and as this forms the upper wall of the generator it will be seen that the generator is maintained in a highly-heated state, which greatly facilitates and hastens the generation of gas therein. The operation of the remainder of the burner is the same as the ordinary burner in common use. 22 designates a mantle-support, and 23 a mantle held thereon and supported above the burner, said parts being of the ordinary construction and arrangement.

Instead of providinga ring 17 and projecting the flanges 18 therefrom said flanges may be arranged at the edge of the crown-plate, so as to extend therefrom inward toward the collar 13 and terminating short of said collar, as shown in Fig. 8, the operation being the same. The construction previously described is, however, preferred.

It will be understood from the foregoing description that by reason of the crown-plate or upper wall of the generator being exposed to the direct action of a subsidiary flame the said generator will be maintained in a highlyheated state, thus quickening and facilitating the generation of gas and overcoming the objection so often urged against burners ofthe type herein described-that the generator is apt to become chilled by drafts and cease to generate gas, thereupon causing a flooding of the burner, and consequently a burning of the gasolene or other oil before it is vaporized,

the spiritor sacrificing any of the advantages of the invention.

Having thus described the invention, what is claimed, and desired to be secured by Letters Patent, is-

1. In a gas or vapor burner, the combination with the generator, and a crown-plate therefor, of a superimposed deflecting-hood extending around the'burner in close proximity to the crown-plate, the spacebetwecn the hood and the crown-plate communicating with the interior of the burner by gas-ports located immediately above the plane of the crownplate, and just beneath the top of the hood, the burner being provided above the hood with means for causing an ignition of the gas passing outward through said ports, substantially as described.

2. In a gas or vapor burner, the combination with a generator, having a crown-plate, of a collar extending upward from the crownplate and provided with an upwardly-extending slit, and with gas-ports adjacent to the crown-plate, and a hood extending around said collar and overhanging the crown-plate with a space beneath the hood communicating with the gas-ports in the collar, substantially as described.

3. In a gas or vapor burner, the combination with a generator having a crown-plate, of a collar at the upper side of the crown-plate having gas-ports, and a deflecting-hood extending around said collar and overhanging the crown-plate and provided with slits, substantially as and for the purpose specified.

4. In a gas or vapor burner, the combination with a generator having a crown-plate, of a slitted collar above the crown-plate having gas-ports at the point of junction of said collar with the crown-plate, and a deflectinghood encircling said collar, and provided with concaved flanges which overhang the crownplate, and which are provided with slits and notches, substantially as and for the purpose specified.

In testimony that I claim the foregoing as my own I have hereto aflixed my signaturein the presence of two witnesses.

FRANK B. DUFFEY.

Witnesses:

JOHN H. SIGGERS, EDWIN E. VRooMAN. 

